Marriage and issue
In May 1406 Anne married Richard of Conisburgh, the second son of Edward III's fourth surviving son, Edmund of Langley, 1st Duke of York, and his first wife, Isabel, the daughter and coheir of Pedro the Cruel, King of Castile and Leon. The marriage took place without parental consent,[7] and was validated on 23 May 1408 by papal dispensation.[8]
Anne Mortimer and Richard, Earl of Cambridge, had two sons and a daughter:[9]
- Isabel of York (1409 - 2 October 1484), who in 1412, at three years of age, was betrothed to Sir Thomas Grey (1404 – d. before 1426), son and heir of Sir Thomas Grey (c.1385-1415) of Heaton in Norham, Northumberland, and his wife, Alice Neville, the daughter of Ralph Neville, 1st Earl of Westmorland, by whom she had no issue.[10] Isabel married secondly, before 25 April 1426, the marriage being later validated by papal dispensation, Henry Bourchier, 1st Earl of Essex, by whom she had seven sons, William, Sir Henry, Humphrey Bourchier (d.1471), John Bourchier, Lord Ferrers of Groby (d.1495), Sir Thomas, Edward and Fulk, and one daughter, Isabel.
- Henry of York.
- Richard Plantagenet, 3rd Duke of York (21 September 1411 – 30 December 1460), who married Cecily Neville, youngest daughter of Ralph Neville, 1st Earl of Westmorland, by whom he had twelve children, Anne of York, Duchess of Exeter; Henry; Edward IV of England; Edmund, Earl of Rutland; Elizabeth of York, Duchess of Suffolk; Margaret of York, Duchess of Burgundy; William; John; George, Duke of Clarence; Thomas; Richard III of England; and Ursula.
Anne Mortimer died soon after the birth, on 22 September 1411, of her son, Richard. She was buried at Kings Langley, Hertfordshire, once the site of Kings Langley Palace, perhaps in the conventual church which houses the tombs of her husband's parents, Edmund of Langley, 1st Duke of York, and Isabel of Castile.[11]
After Anne Mortimer's death, Richard, Earl of Cambridge, married Maud Clifford, divorced wife of John Neville, 6th Baron Latimer, and daughter of Thomas de Clifford, 6th Baron de Clifford, but had no issue by her.[12]